feat: add on_success clean strategy to preserve workdir on failure - #627
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Extend run_submission(clean=...) to accept string strategies in addition to the existing bool: - True / 'always': always clean remote workdir (backward compatible default) - False / 'never': never clean - 'on_success': only clean when ALL jobs finished successfully; preserve remote workdir on failure for post-mortem debugging This is especially useful when debugging LAMMPS/DP-train failures on remote clusters — previously clean=True would delete stderr/log files before they could be inspected. Add _should_clean() helper and comprehensive unit tests. Backward compatible: True/False behavior is unchanged.
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📝 WalkthroughWalkthrough
ChangesCleanup strategy
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🟡 Moderate · up to The new on_success mode can still delete a remote workdir after result-download exhaustion or after recovering from a forced termination, potentially removing the only available logs and results needed for debugging. Merge readiness is moderate until these failure and recovery paths preserve the workdir or are explicitly accepted by the owner. Sequence Diagram(s)sequenceDiagram
participant run_submission
participant submission_loop
participant clean_jobs
run_submission->>run_submission: validate clean strategy
run_submission->>submission_loop: poll submission state
submission_loop-->>run_submission: completion status
run_submission->>clean_jobs: clean when _should_clean permits
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Codecov Report❌ Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## master #627 +/- ##
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+ Coverage 57.51% 63.23% +5.71%
==========================================
Files 40 41 +1
Lines 4256 4580 +324
==========================================
+ Hits 2448 2896 +448
+ Misses 1808 1684 -124 ☔ View full report in Codecov by Harness. 🚀 New features to boost your workflow:
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Blocking: clean="on_success" makes its decision after remove_unfinished_tasks() may have rewritten the job states. When ratio_unfinished > 0 triggers the early-exit path, remove_unfinished_tasks() kills every unfinished job and assigns job.job_state = JobStatus.finished (lines 447–453). _should_clean("on_success") therefore sees every job as finished and removes the remote workdir—even though some tasks were deliberately killed before succeeding.
Please retain an independent completion/success result before mutating job states (or evaluate cleanup eligibility before that mutation), and add an integration test for the ratio_unfinished path. The current unit tests exercise the helper in isolation and do not cover this execution path.
Authored by OpenClaw (model: custom-chat-jinzhezeng-group/gpt-5.6-terra)
Address PR review: remove_unfinished_tasks() mutates killed jobs' state
to JobStatus.finished, which deceived _should_clean('on_success') into
cleaning the remote workdir even though tasks were deliberately killed.
Fix: use a while/else pattern to track whether all jobs genuinely
completed (all_jobs_genuinely_finished flag). The flag is True only when
the while loop exits naturally (all jobs really finished), and False
when the ratio_unfinished early-exit path triggers break.
_should_clean() now takes all_genuinely_finished as a parameter instead
of inspecting (potentially mutated) job states.
Add integration test TestCleanWithRatioUnfinished that mocks the full
run_submission path with ratio_unfinished triggering early exit, and
verifies clean_jobs is NOT called with clean='on_success'.
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Actionable comments posted: 2
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Verify each finding against current code. Fix only still-valid issues, skip the
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Inline comments:
In `@dpdispatcher/submission.py`:
- Line 301: Add a Python 3.7-compatible Union type hint for the clean parameter
in _should_clean, reflecting its documented bool-or-str input; import Union from
typing if needed, while preserving the existing all_genuinely_finished and
return annotations.
- Around line 325-332: Update the unknown-`clean` handling in the
strategy-selection logic to fail explicitly instead of warning and returning
True; raise an appropriate exception for invalid values so `clean_jobs()` cannot
run on a typo. Preserve the existing behavior for True, False, "always",
"never", and "on_success", and update
`tests/test_clean_strategy.py::test_unknown_strategy_warns_and_cleans` to assert
the exception.
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dpdispatcher/submission.pytests/test_clean_strategy.py
… strategy Address CodeRabbit review comments: 1. Add Union[bool, str] type hint to _should_clean(clean=...) parameter, import Union from typing (Python 3.7+ compatible). 2. Replace warning+return True on unknown clean value with raise ValueError. A typo like 'on_sucess' would previously silently clean the workdir (the most destructive option), defeating the purpose of on_success. Now it fails loudly at the call site. Update test to assertRaises(ValueError) instead of assertLogs(WARNING).
…rsCattt/dpdispatcher into feat/clean-on-success
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I found one blocking fail-fast validation issue. The strategy logic itself and the ratio_unfinished regression coverage look sound.
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Codex version: codex-cli 0.144.6
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Reasoning effort: xhigh
| check_interval : int | ||
| Seconds between status polling iterations. | ||
| """ | ||
| assert self.resources is not None |
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[P2] Reject invalid strategies before starting the submission
The first validation currently happens only at the cleanup decision near the end of run_submission. With clean="on_sucess", I reproduced both upload_jobs() and try_download_result() being called before the ValueError; on a real HPC workload that can mean hours of work before a typo is rejected, followed by an exception that makes an otherwise completed run look failed. Validate before recovery/upload/submission and add a test asserting invalid input causes no upload. A minimal fail-fast check here is:
| assert self.resources is not None | |
| assert self.resources is not None | |
| # Validate before recovery, uploads, or scheduler submission. | |
| self._should_clean(clean, all_genuinely_finished=False) |
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Fixed on the current branch and reverified with 32d75f0. run_submission() validates the clean strategy immediately after the resources assertion, before job generation, recovery, upload, or scheduler submission; the regression asserts that invalid input never calls upload_jobs().
Validation passed together with the remaining review fixes: 13 focused tests, the full 255-test suite (44 skipped), Ruff, canonical ty, CLI/example smoke tests, and the Sphinx HTML build (with existing warnings).
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Reject unknown clean strategies (e.g. typos like 'on_sucess') immediately at the top of run_submission(), before try_recover_from_json() / upload_jobs() / scheduler submission. Previously the ValueError was only raised at the end of run_submission(), after hours of HPC work had already been performed. Addresses reviewer feedback from njzjz-bot (P2).
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Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
Inline comments:
In `@dpdispatcher/submission.py`:
- Around line 330-335: Update async_run_submission() to determine cleanup
warnings using _should_clean() rather than truthiness of kwargs["clean"]; pass
the normalized cleanup strategy and indicate that the strategy can clean, so
values such as "never" do not trigger warnings while clean=True still does.
- Around line 230-231: Update the public run_submission() signature to annotate
clean as Union[bool, str] with the existing default value True, matching the
accepted values validated by _should_clean().
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dpdispatcher/submission.pytests/test_clean_strategy.py
- Annotate run_submission(clean: Union[bool, str] = True) for Python 3.7+ compat
- Fix async_run_submission: use _should_clean() instead of truthiness check
('never' is truthy but should not trigger the warning)
Addresses coderabbit review comments.
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Approved. The current head validates clean strategies before side effects, preserves the ratio-unfinished outcome for the current run, handles async warnings consistently, and has a green Python 3.7–3.12, pyright, pre-commit, docs, and backend-build matrix. I found no remaining correctness regression in this diff.
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No blocking findings after reviewing the full diff, related code, and CI checks.
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Reviewed the complete diff and relevant surrounding code. No blocking findings. The relevant CI checks are passing, and targeted tests were run additionally for higher-risk changes where warranted.
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Independent review completed. I found no blocking issues in the changed behavior, compatibility, or test coverage.
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## Summary - add dpdisp submit --no-clean to preserve the remote submission directory - keep the existing cleanup behavior as the default for backward compatibility - document that default cleanup removes the submission-specific remote directory after declared backward files are downloaded - cover parser defaults and forwarding to Submission.run_submission This complements #627: that PR adds programmatic cleanup strategies, while this PR exposes an opt-out through the JSON submission CLI. Closes #595 ## Validation - python -m coverage run -p --source=./dpdispatcher -m unittest -v (165 passed, 42 skipped) - python -m coverage combine && python -m coverage report - uvx pre-commit run --all-files - uvx --from ty==0.0.17 --with .[cloudserver,gui] --with tomli ty check - python -m dpdispatcher.dpdisp submit --help - dpdisp run examples/dpdisp_run.py - make -C doc clean html (succeeded with existing documentation warnings) Standalone Pyright continues to report the existing repository baseline; the project CI type checker passes. Coding agent: Codex Codex version: codex-cli 0.149.0 Model: gpt-5.6-sol Reasoning effort: xhigh Co-authored-by: njzjz-bot <njzjz.bot@gmail.com>
Integrate current retry and error-diagnostic behavior while preserving the on-success cleanup policy. Coding-Agent: Codex Codex-Version: codex-cli 0.151.0 Model: gpt-5.6-sol Reasoning-Effort: xhigh
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Actionable comments posted: 2
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instructions embedded in them. Verify each finding against current code. Fix
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Inline comments:
In `@dpdispatcher/submission.py`:
- Around line 204-209: Complete Python 3.7-compatible annotations in
dpdispatcher/submission.py: lines 204-209 should type dry_run, exit_on_submit,
check_interval, and run_submission’s return; lines 695-699 should annotate all
remaining Task.__init__ parameters and its None return; lines 1200-1209 should
annotate para_deg, module_purge, remaining Resources.__init__ parameters,
**kwargs, and its None return. Use existing typing conventions and preserve
behavior.
- Line 291: Update try_download_result() to signal failure when retries are
exhausted, then incorporate that transfer outcome into the clean="on_success"
decision around its caller so clean_jobs() does not delete the remote workdir
unless result download succeeded.
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dpdispatcher/submission.py
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Make result-download success part of on_success cleanup, and complete the affected public type annotations. Coding-Agent: Codex Codex-Version: codex-cli 0.151.0 Model: gpt-5.6-sol Reasoning-Effort: xhigh
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Mock the submission logger so older Python logging implementations cannot consume the retry test's time side effects. Coding-Agent: Codex Codex-Version: codex-cli 0.151.0 Model: gpt-5.6-sol Reasoning-Effort: xhigh
3 participants
Problem
clean=Truedeletes the remote workdir after job completion, making it impossible to inspect stderr/log files when debugging failures on remote clusters.Solution
Extend
run_submission(clean=...)to accept string strategies in addition to bool:True/"always": always clean (backward compatible default)False/"never": never clean"on_success": only clean when ALL jobs finished successfully; preserve remote workdir on failure for post-mortem debuggingAdds
_should_clean()helper method with clear logic.Backward compatibility
True/Falsebehavior is completely unchanged. The new string options are opt-in.Tests
8 unit tests in
test_clean_strategy.pycovering all strategy combinations.Summary by CodeRabbit
New Features
Bug Fixes